switch between two frequencies witth rtl_433
you can try something like this rtl_433 -f 433920000 -f 315M -H 1
but you will most likely miss some of the signals

On Friday, January 13, 2023 at 8:30:23 PM UTC-6 [email protected] wrote:

> Vince,
>     Thanks for the reply.
>
> I'm using VmWare as my virtualization engine using intel architecture. The 
> Weewx is running under a virtualized Redhat 8 instance.
>
> 1) Thanks! I will look into adding a broker. So if I get this correct the 
> Raspberry PI will send to the broker and the Redhat 8 server running Weewx 
> will pick up the message from the broker?
>
> 2) I kind of figured that too. I see no way to switch between two 
> frequencies with just one SDR running. I ordered another SDR so now I'll 
> have two of them running.
>
> 3) I was thinking Purpleair too. That would probably be the easiest if 
> it's supported by a plugin.
>
> Thanks a lot. This has helped me understand were I need to go with this.
>
> Regards,
>
> Glen
>
> On Friday, January 13, 2023 at 10:37:10 AM UTC-8 vince wrote:
> I guess I have to ask what kind of computer is running your virtual 
> machine, and what virtualization software are you running.  We kinda need 
> to know your whole setup from a hardware perspective.
>
> For (1) FWIW - I use MQTT.  I run a primary Davis VP2 station connected to 
> a pi4.  I run a secondary Ecowitt weewx station in a Docker container on a 
> Ubuntu x86_64 host that publishes its data to MQTT using the MQTT 
> extension.  The Davis weewx subscribes to the MQTT data using the 
> MQTTsubscribe extension. That means running a MQTT broker someplace in the 
> middle of course, but I do that in Docker as well.  It's simpler in 
> practice than it sounds.
>
> For (2) I *think* you need separate instances and radios to listen for 
> each frequency, but I might be mistaken there.   For the AQ stuff, it 
> depends on what you buy.  If you go PurpleAir there's an extension for 
> that.  If you go with a Davis Airlink, you could probably modify the 
> purpleair extension I'd think.  The two are very similar.
>
> For (3) there are too many possibilities to answer there. Personally I 
> really like MQTT as a central collector of stuff from all kinds of sources, 
> and MQTTsubscribe on my primary weewx box to grab the readings I'm looking 
> for, unless there's an explicit extension already that I can use directly 
> (purpleair, for me).
>
> Adding a MQTT broker (use mosquitto) is very easy to do and lightweight.
>

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